Multihulls

Discuss multi-hull sailboat design, production and custom sailing catamarans and trimarans.

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  1. Bob Rosa

    Cooling water thru hull pickup placement

    Bob Rosa, Apr 24, 2024 at 12:09 PM
    Replies:
    5
    Views:
    167
    C. Dog
    Apr 25, 2024 at 9:58 PM
  2. oldmulti

    Multihull Structure Thoughts

    oldmulti, May 27, 2019 ... 258 259 260
    Replies:
    3,891
    Views:
    957,077
    oldmulti
    Apr 25, 2024 at 9:06 PM
  3. Quattro64

    Thermo-Lite Boards

    Quattro64, Apr 23, 2024 at 10:11 AM ... 2
    Replies:
    27
    Views:
    508
    Quattro64
    Apr 25, 2024 at 7:44 PM
  4. MichaelRoberts

    Chinese electric winch?

    MichaelRoberts, Apr 22, 2024 at 5:54 AM
    Replies:
    5
    Views:
    288
    fcfc
    Apr 24, 2024 at 12:12 PM
  5. Teamscarab

    Siren 8.4 catamaran.

    Teamscarab, Sep 16, 2021
    Replies:
    10
    Views:
    7,252
    guzzis3
    Apr 16, 2024
  6. Skip Johnson

    Mast raising/lowering question

    Skip Johnson, Apr 12, 2024
    Replies:
    5
    Views:
    320
    Skip Johnson
    Apr 15, 2024
  7. Skip JayR

    How to sail/buy racing trimarans in cruising modus ?

    Skip JayR, Sep 30, 2015 ... 2
    Replies:
    20
    Views:
    9,668
    patzefran
    Apr 13, 2024
  8. hashtag_laeuft

    Balance considerations for Boardless Beachcat

    hashtag_laeuft, Apr 1, 2024
    Replies:
    4
    Views:
    521
    hashtag_laeuft
    Apr 11, 2024
  9. Adrian Baker

    Design of wood epoxy trimaran beams

    Adrian Baker, Dec 23, 2023 ... 2 3 4
    Replies:
    53
    Views:
    5,966
    nueva30
    Apr 11, 2024
  10. Slimes

    Cat Hull Design

    Slimes, Mar 18, 2024 ... 2
    Replies:
    17
    Views:
    1,172
    tane
    Mar 22, 2024
  11. Mulkari

    Light weight big open deck catamaran

    Mulkari, Feb 21, 2024 ... 2 3 4
    Replies:
    50
    Views:
    4,008
    Mulkari
    Mar 19, 2024
  12. Multihulls anonymous

    Extra Marstrom 32 and f40 catamaran hulls

    Multihulls anonymous, Mar 19, 2024
    Replies:
    0
    Views:
    338
    Multihulls anonymous
    Mar 19, 2024
  13. Scopic

    Over built flat deck power cat

    Scopic, Mar 11, 2024
    Replies:
    12
    Views:
    622
    Ad Hoc
    Mar 12, 2024
  14. Forecaddie

    25 foot 7.5m Drua research

    Forecaddie, Nov 28, 2023
    Replies:
    4
    Views:
    1,048
    rob denney
    Mar 9, 2024
  15. IvanAntun

    Inquiry for information from experienced boatbuilders and boat designers

    IvanAntun, Feb 8, 2024 ... 2 3
    Replies:
    34
    Views:
    2,608
    IvanAntun
    Mar 9, 2024
  16. Manfred.pech

    Everglades Challenge 2024

    Manfred.pech, Mar 4, 2024
    Replies:
    13
    Views:
    1,000
    portacruise
    Mar 7, 2024
  17. member 76956

    Custom Multihulls

    member 76956, May 8, 2022 ... 2
    Replies:
    24
    Views:
    6,658
    brian eiland
    Mar 2, 2024
  18. kimosadler

    Aluminum Strongall Sailing Catamaran Plans?

    kimosadler, May 4, 2009 ... 2
    Replies:
    19
    Views:
    51,683
    Rico chico
    Mar 1, 2024
  19. Michael78

    Multihulls Direct?

    Michael78, Feb 28, 2024
    Replies:
    0
    Views:
    468
    Michael78
    Feb 28, 2024
  20. lucdekeyser

    80 foot cargo harryproa

    lucdekeyser, Nov 15, 2020 ... 10 11 12
    Replies:
    174
    Views:
    42,588
    bajansailor
    Feb 23, 2024
  21. Jeremy Perkins

    Beginning: Hull shape and size

    Jeremy Perkins, Feb 12, 2024
    Replies:
    11
    Views:
    1,072
    BlueBell
    Feb 18, 2024
  22. Paul Scott

    Center of effort of the A class catamaran sail

    Paul Scott, Nov 24, 2022 ... 2
    Replies:
    16
    Views:
    2,462
    Erwan
    Feb 9, 2024
  23. tanjera

    Malcolm Tennant "Wild Thing" Tri

    tanjera, Sep 28, 2014 ... 2
    Replies:
    21
    Views:
    8,651
    oldmulti
    Feb 5, 2024
  24. waterbear

    The revisionist mythology of Wharram

    waterbear, Dec 8, 2023 ... 2 3
    Replies:
    39
    Views:
    4,399
    nota
    Feb 4, 2024
  25. Thule

    Wooden caramaran wisdom

    Thule, Jan 26, 2024 ... 2
    Replies:
    18
    Views:
    1,707
    Thule
    Jan 31, 2024
  26. Dolfiman

    Arkea Ultim challenge : the race around the world, in solo !

    Dolfiman, Jan 6, 2024
    Replies:
    8
    Views:
    1,682
    Dolfiman
    Jan 31, 2024
  27. Lucainbarca

    Rival 21 from batavento sailmakers brazil

    Lucainbarca, Apr 20, 2019 ... 2
    Replies:
    25
    Views:
    9,380
    Tchamo
    Jan 25, 2024
  28. Ilikebigboatsandicanotlie

    Limits to the beam of a catamaran ratio ?

    Ilikebigboatsandicanotlie, Dec 29, 2023
    Replies:
    13
    Views:
    1,681
    C. Dog
    Jan 19, 2024
  29. Steel Hull

    FAO 7.8 meter trimaran ocean capable?

    Steel Hull, Sep 30, 2023
    Replies:
    8
    Views:
    1,819
    gonzo
    Jan 16, 2024
  30. i_mac

    Mast Rotation Systems

    i_mac, Jan 8, 2024
    Replies:
    5
    Views:
    1,033
    Blueknarr
    Jan 15, 2024
  31. Corley

    Lex Nicol, did he ever create any stock plans?

    Corley, Mar 24, 2010 ... 2
    Replies:
    27
    Views:
    14,916
    C. Dog
    Jan 8, 2024
  32. James Wellington

    Solid laminate frp

    James Wellington, Dec 14, 2023 ... 2 3
    Replies:
    40
    Views:
    3,168
    latestarter
    Dec 26, 2023
  33. peterbike

    A bit of sailing history

    peterbike, Dec 21, 2023
    Replies:
    0
    Views:
    562
    peterbike
    Dec 21, 2023
  34. Michael Farmer

    Sailing outrigger canoe

    Michael Farmer, Aug 23, 2021 ... 2
    Replies:
    24
    Views:
    9,334
    Keern Haslem
    Dec 19, 2023
  35. Iridian

    Considering Homebuilding a ~50' Catamaran

    Iridian, Jun 10, 2021 ... 3 4 5
    Replies:
    69
    Views:
    13,771
    Air Tahiti
    Dec 17, 2023
  36. Air Tahiti

    Cross Beam thoughts for small Tri

    Air Tahiti, Aug 20, 2023 ... 2
    Replies:
    26
    Views:
    2,606
    Air Tahiti
    Dec 17, 2023
  37. 8Petros

    Low-cost experimental platform cat for inland waterways

    8Petros, Dec 2, 2023
    Replies:
    10
    Views:
    1,544
    waterbear
    Dec 8, 2023
  38. trungpv

    Cost for a sail system!

    trungpv, Oct 15, 2014
    Replies:
    9
    Views:
    3,472
    Vijay Krishna
    Dec 7, 2023
  39. power boater

    Duet's consumption report

    power boater, Dec 1, 2023
    Replies:
    5
    Views:
    942
    fallguy
    Dec 3, 2023
  40. guzzis3

    Catamaran plans, who have I forgotten ?

    guzzis3, Apr 4, 2023 ... 12 13 14
    Replies:
    200
    Views:
    18,998
    waikikin
    Nov 29, 2023
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